(function(global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
        typeof define === 'function' && define.amd ? define(factory) :
        (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.JSON5 = factory());
}(this, (function() {
    'use strict';

    function createCommonjsModule(fn, module) {
        return module = {
            exports: {}
        }, fn(module, module.exports), module.exports;
    }

    var _global = createCommonjsModule(function(module) {
        // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
        var global = module.exports = typeof window != 'undefined' && window.Math == Math ?
            window : typeof self != 'undefined' && self.Math == Math ? self
            // eslint-disable-next-line no-new-func
            :
            Function('return this')();
        if (typeof __g == 'number') {
            __g = global;
        } // eslint-disable-line no-undef
    });

    var _core = createCommonjsModule(function(module) {
        var core = module.exports = {
            version: '2.6.5'
        };
        if (typeof __e == 'number') {
            __e = core;
        } // eslint-disable-line no-undef
    });
    var _core_1 = _core.version;

    var _isObject = function(it) {
        return typeof it === 'object' ? it !== null : typeof it === 'function';
    };

    var _anObject = function(it) {
        if (!_isObject(it)) {
            throw TypeError(it + ' is not an object!');
        }
        return it;
    };

    var _fails = function(exec) {
        try {
            return !!exec();
        } catch (e) {
            return true;
        }
    };

    // Thank's IE8 for his funny defineProperty
    var _descriptors = !_fails(function() {
        return Object.defineProperty({}, 'a', {
            get: function() {
                return 7;
            }
        }).a != 7;
    });

    var document = _global.document;
    // typeof document.createElement is 'object' in old IE
    var is = _isObject(document) && _isObject(document.createElement);
    var _domCreate = function(it) {
        return is ? document.createElement(it) : {};
    };

    var _ie8DomDefine = !_descriptors && !_fails(function() {
        return Object.defineProperty(_domCreate('div'), 'a', {
            get: function() {
                return 7;
            }
        }).a != 7;
    });

    // 7.1.1 ToPrimitive(input [, PreferredType])

    // instead of the ES6 spec version, we didn't implement @@toPrimitive case
    // and the second argument - flag - preferred type is a string
    var _toPrimitive = function(it, S) {
        if (!_isObject(it)) {
            return it;
        }
        var fn, val;
        if (S && typeof(fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) {
            return val;
        }
        if (typeof(fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) {
            return val;
        }
        if (!S && typeof(fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) {
            return val;
        }
        throw TypeError("Can't convert object to primitive value");
    };

    var dP = Object.defineProperty;

    var f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
        _anObject(O);
        P = _toPrimitive(P, true);
        _anObject(Attributes);
        if (_ie8DomDefine) {
            try {
                return dP(O, P, Attributes);
            } catch (e) {
                /* empty */ }
        }
        if ('get' in Attributes || 'set' in Attributes) {
            throw TypeError('Accessors not supported!');
        }
        if ('value' in Attributes) {
            O[P] = Attributes.value;
        }
        return O;
    };

    var _objectDp = {
        f: f
    };

    var _propertyDesc = function(bitmap, value) {
        return {
            enumerable: !(bitmap & 1),
            configurable: !(bitmap & 2),
            writable: !(bitmap & 4),
            value: value
        };
    };

    var _hide = _descriptors ? function(object, key, value) {
        return _objectDp.f(object, key, _propertyDesc(1, value));
    } : function(object, key, value) {
        object[key] = value;
        return object;
    };

    var hasOwnProperty = {}.hasOwnProperty;
    var _has = function(it, key) {
        return hasOwnProperty.call(it, key);
    };

    var id = 0;
    var px = Math.random();
    var _uid = function(key) {
        return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
    };

    var _library = false;

    var _shared = createCommonjsModule(function(module) {
        var SHARED = '__core-js_shared__';
        var store = _global[SHARED] || (_global[SHARED] = {});

        (module.exports = function(key, value) {
            return store[key] || (store[key] = value !== undefined ? value : {});
        })('versions', []).push({
            version: _core.version,
            mode: _library ? 'pure' : 'global',
            copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
        });
    });

    var _functionToString = _shared('native-function-to-string', Function.toString);

    var _redefine = createCommonjsModule(function(module) {
        var SRC = _uid('src');

        var TO_STRING = 'toString';
        var TPL = ('' + _functionToString).split(TO_STRING);

        _core.inspectSource = function(it) {
            return _functionToString.call(it);
        };

        (module.exports = function(O, key, val, safe) {
            var isFunction = typeof val == 'function';
            if (isFunction) {
                _has(val, 'name') || _hide(val, 'name', key);
            }
            if (O[key] === val) {
                return;
            }
            if (isFunction) {
                _has(val, SRC) || _hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
            }
            if (O === _global) {
                O[key] = val;
            } else if (!safe) {
                delete O[key];
                _hide(O, key, val);
            } else if (O[key]) {
                O[key] = val;
            } else {
                _hide(O, key, val);
            }
            // add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
        })(Function.prototype, TO_STRING, function toString() {
            return typeof this == 'function' && this[SRC] || _functionToString.call(this);
        });
    });

    var _aFunction = function(it) {
        if (typeof it != 'function') {
            throw TypeError(it + ' is not a function!');
        }
        return it;
    };

    // optional / simple context binding

    var _ctx = function(fn, that, length) {
        _aFunction(fn);
        if (that === undefined) {
            return fn;
        }
        switch (length) {
            case 1:
                return function(a) {
                    return fn.call(that, a);
                };
            case 2:
                return function(a, b) {
                    return fn.call(that, a, b);
                };
            case 3:
                return function(a, b, c) {
                    return fn.call(that, a, b, c);
                };
        }
        return function( /* ...args */ ) {
            return fn.apply(that, arguments);
        };
    };

    var PROTOTYPE = 'prototype';

    var $export = function(type, name, source) {
        var IS_FORCED = type & $export.F;
        var IS_GLOBAL = type & $export.G;
        var IS_STATIC = type & $export.S;
        var IS_PROTO = type & $export.P;
        var IS_BIND = type & $export.B;
        var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] || (_global[name] = {}) : (_global[name] || {})[PROTOTYPE];
        var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
        var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
        var key, own, out, exp;
        if (IS_GLOBAL) {
            source = name;
        }
        for (key in source) {
            // contains in native
            own = !IS_FORCED && target && target[key] !== undefined;
            // export native or passed
            out = (own ? target : source)[key];
            // bind timers to global for call from export context
            exp = IS_BIND && own ? _ctx(out, _global) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
            // extend global
            if (target) {
                _redefine(target, key, out, type & $export.U);
            }
            // export
            if (exports[key] != out) {
                _hide(exports, key, exp);
            }
            if (IS_PROTO && expProto[key] != out) {
                expProto[key] = out;
            }
        }
    };
    _global.core = _core;
    // type bitmap
    $export.F = 1; // forced
    $export.G = 2; // global
    $export.S = 4; // static
    $export.P = 8; // proto
    $export.B = 16; // bind
    $export.W = 32; // wrap
    $export.U = 64; // safe
    $export.R = 128; // real proto method for `library`
    var _export = $export;

    // 7.1.4 ToInteger
    var ceil = Math.ceil;
    var floor = Math.floor;
    var _toInteger = function(it) {
        return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
    };

    // 7.2.1 RequireObjectCoercible(argument)
    var _defined = function(it) {
        if (it == undefined) {
            throw TypeError("Can't call method on  " + it);
        }
        return it;
    };

    // true  -> String#at
    // false -> String#codePointAt
    var _stringAt = function(TO_STRING) {
        return function(that, pos) {
            var s = String(_defined(that));
            var i = _toInteger(pos);
            var l = s.length;
            var a, b;
            if (i < 0 || i >= l) {
                return TO_STRING ? '' : undefined;
            }
            a = s.charCodeAt(i);
            return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff ?
                TO_STRING ? s.charAt(i) : a :
                TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
        };
    };

    var $at = _stringAt(false);
    _export(_export.P, 'String', {
        // 21.1.3.3 String.prototype.codePointAt(pos)
        codePointAt: function codePointAt(pos) {
            return $at(this, pos);
        }
    });

    var codePointAt = _core.String.codePointAt;

    var max = Math.max;
    var min = Math.min;
    var _toAbsoluteIndex = function(index, length) {
        index = _toInteger(index);
        return index < 0 ? max(index + length, 0) : min(index, length);
    };

    var fromCharCode = String.fromCharCode;
    var $fromCodePoint = String.fromCodePoint;

    // length should be 1, old FF problem
    _export(_export.S + _export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
        // 21.1.2.2 String.fromCodePoint(...codePoints)
        fromCodePoint: function fromCodePoint(x) {
            var arguments$1 = arguments;
            // eslint-disable-line no-unused-vars
            var res = [];
            var aLen = arguments.length;
            var i = 0;
            var code;
            while (aLen > i) {
                code = +arguments$1[i++];
                if (_toAbsoluteIndex(code, 0x10ffff) !== code) {
                    throw RangeError(code + ' is not a valid code point');
                }
                res.push(code < 0x10000 ?
                    fromCharCode(code) :
                    fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00)
                );
            }
            return res.join('');
        }
    });

    var fromCodePoint = _core.String.fromCodePoint;

    // This is a generated file. Do not edit.
    var Space_Separator = /[\u1680\u2000-\u200A\u202F\u205F\u3000]/;
    var ID_Start = 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    var ID_Continue = /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u0860-\u086A\u08A0-\u08B4\u08B6-\u08BD\u08D4-\u08E1\u08E3-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u09FC\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0AF9-\u0AFF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-\u0C5A\u0C60-\u0C63\u0C66-\u0C6F\u0C80-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D00-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D54-\u0D57\u0D5F-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1C80-\u1C88\u1CD0-\u1CD2\u1CD4-\u1CF9\u1D00-\u1DF9\u1DFB-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C5\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA8FD\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF2D-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE3E\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC00-\uDC4A\uDC50-\uDC59\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-\uDCE9\uDCFF\uDE00-\uDE3E\uDE47\uDE50-\uDE83\uDE86-\uDE99\uDEC0-\uDEF8]|\uD807[\uDC00-\uDC08\uDC0A-\uDC36\uDC38-\uDC40\uDC50-\uDC59\uDC72-\uDC8F\uDC92-\uDCA7\uDCA9-\uDCB6\uDD00-\uDD06\uDD08\uDD09\uDD0B-\uDD36\uDD3A\uDD3C\uDD3D\uDD3F-\uDD47\uDD50-\uDD59]|\uD808[\uDC00-\uDF99]|\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC]|\uD822[\uDC00-\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD838[\uDC00-\uDC06\uDC08-\uDC18\uDC1B-\uDC21\uDC23\uDC24\uDC26-\uDC2A]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6\uDD00-\uDD4A\uDD50-\uDD59]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-\uDFE0]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]/;

    var unicode = {
        Space_Separator: Space_Separator,
        ID_Start: ID_Start,
        ID_Continue: ID_Continue
    };

    var util = {
        isSpaceSeparator: function isSpaceSeparator(c) {
            return typeof c === 'string' && unicode.Space_Separator.test(c)
        },

        isIdStartChar: function isIdStartChar(c) {
            return typeof c === 'string' && (
                (c >= 'a' && c <= 'z') ||
                (c >= 'A' && c <= 'Z') ||
                (c === '$') || (c === '_') ||
                unicode.ID_Start.test(c)
            )
        },

        isIdContinueChar: function isIdContinueChar(c) {
            return typeof c === 'string' && (
                (c >= 'a' && c <= 'z') ||
                (c >= 'A' && c <= 'Z') ||
                (c >= '0' && c <= '9') ||
                (c === '$') || (c === '_') ||
                (c === '\u200C') || (c === '\u200D') ||
                unicode.ID_Continue.test(c)
            )
        },

        isDigit: function isDigit(c) {
            return typeof c === 'string' && /[0-9]/.test(c)
        },

        isHexDigit: function isHexDigit(c) {
            return typeof c === 'string' && /[0-9A-Fa-f]/.test(c)
        },
    };

    var source;
    var parseState;
    var stack;
    var pos;
    var line;
    var column;
    var token;
    var key;
    var root;

    var parse = function parse(text, reviver) {
        source = String(text);
        parseState = 'start';
        stack = [];
        pos = 0;
        line = 1;
        column = 0;
        token = undefined;
        key = undefined;
        root = undefined;

        do {
            token = lex();

            // This code is unreachable.
            // if (!parseStates[parseState]) {
            //     throw invalidParseState()
            // }

            parseStates[parseState]();
        } while (token.type !== 'eof')

        if (typeof reviver === 'function') {
            return internalize({
                '': root
            }, '', reviver)
        }

        return root
    };

    function internalize(holder, name, reviver) {
        var value = holder[name];
        if (value != null && typeof value === 'object') {
            if (Array.isArray(value)) {
                for (var i = 0; i < value.length; i++) {
                    var key = String(i);
                    var replacement = internalize(value, key, reviver);
                    if (replacement === undefined) {
                        delete value[key];
                    } else {
                        Object.defineProperty(value, key, {
                            value: replacement,
                            writable: true,
                            enumerable: true,
                            configurable: true,
                        });
                    }
                }
            } else {
                for (var key$1 in value) {
                    var replacement$1 = internalize(value, key$1, reviver);
                    if (replacement$1 === undefined) {
                        delete value[key$1];
                    } else {
                        Object.defineProperty(value, key$1, {
                            value: replacement$1,
                            writable: true,
                            enumerable: true,
                            configurable: true,
                        });
                    }
                }
            }
        }

        return reviver.call(holder, name, value)
    }

    var lexState;
    var buffer;
    var doubleQuote;
    var sign;
    var c;

    function lex() {
        lexState = 'default';
        buffer = '';
        doubleQuote = false;
        sign = 1;

        for (;;) {
            c = peek();

            // This code is unreachable.
            // if (!lexStates[lexState]) {
            //     throw invalidLexState(lexState)
            // }

            var token = lexStates[lexState]();
            if (token) {
                return token
            }
        }
    }

    function peek() {
        if (source[pos]) {
            return String.fromCodePoint(source.codePointAt(pos))
        }
    }

    function read() {
        var c = peek();

        if (c === '\n') {
            line++;
            column = 0;
        } else if (c) {
            column += c.length;
        } else {
            column++;
        }

        if (c) {
            pos += c.length;
        }

        return c
    }

    var lexStates = {
        default: function default$1() {
            switch (c) {
                case '\t':
                case '\v':
                case '\f':
                case ' ':
                case '\u00A0':
                case '\uFEFF':
                case '\n':
                case '\r':
                case '\u2028':
                case '\u2029':
                    read();
                    return

                case '/':
                    read();
                    lexState = 'comment';
                    return

                case undefined:
                    read();
                    return newToken('eof')
            }

            if (util.isSpaceSeparator(c)) {
                read();
                return
            }

            // This code is unreachable.
            // if (!lexStates[parseState]) {
            //     throw invalidLexState(parseState)
            // }

            return lexStates[parseState]()
        },

        comment: function comment() {
            switch (c) {
                case '*':
                    read();
                    lexState = 'multiLineComment';
                    return

                case '/':
                    read();
                    lexState = 'singleLineComment';
                    return
            }

            throw invalidChar(read())
        },

        multiLineComment: function multiLineComment() {
            switch (c) {
                case '*':
                    read();
                    lexState = 'multiLineCommentAsterisk';
                    return

                case undefined:
                    throw invalidChar(read())
            }

            read();
        },

        multiLineCommentAsterisk: function multiLineCommentAsterisk() {
            switch (c) {
                case '*':
                    read();
                    return

                case '/':
                    read();
                    lexState = 'default';
                    return

                case undefined:
                    throw invalidChar(read())
            }

            read();
            lexState = 'multiLineComment';
        },

        singleLineComment: function singleLineComment() {
            switch (c) {
                case '\n':
                case '\r':
                case '\u2028':
                case '\u2029':
                    read();
                    lexState = 'default';
                    return

                case undefined:
                    read();
                    return newToken('eof')
            }

            read();
        },

        value: function value() {
            switch (c) {
                case '{':
                case '[':
                    return newToken('punctuator', read())

                case 'n':
                    read();
                    literal('ull');
                    return newToken('null', null)

                case 't':
                    read();
                    literal('rue');
                    return newToken('boolean', true)

                case 'f':
                    read();
                    literal('alse');
                    return newToken('boolean', false)

                case '-':
                case '+':
                    if (read() === '-') {
                        sign = -1;
                    }

                    lexState = 'sign';
                    return

                case '.':
                    buffer = read();
                    lexState = 'decimalPointLeading';
                    return

                case '0':
                    buffer = read();
                    lexState = 'zero';
                    return

                case '1':
                case '2':
                case '3':
                case '4':
                case '5':
                case '6':
                case '7':
                case '8':
                case '9':
                    buffer = read();
                    lexState = 'decimalInteger';
                    return

                case 'I':
                    read();
                    literal('nfinity');
                    return newToken('numeric', Infinity)

                case 'N':
                    read();
                    literal('aN');
                    return newToken('numeric', NaN)

                case '"':
                case "'":
                    doubleQuote = (read() === '"');
                    buffer = '';
                    lexState = 'string';
                    return
            }

            throw invalidChar(read())
        },

        identifierNameStartEscape: function identifierNameStartEscape() {
            if (c !== 'u') {
                throw invalidChar(read())
            }

            read();
            var u = unicodeEscape();
            switch (u) {
                case '$':
                case '_':
                    break

                default:
                    if (!util.isIdStartChar(u)) {
                        throw invalidIdentifier()
                    }

                    break
            }

            buffer += u;
            lexState = 'identifierName';
        },

        identifierName: function identifierName() {
            switch (c) {
                case '$':
                case '_':
                case '\u200C':
                case '\u200D':
                    buffer += read();
                    return

                case '\\':
                    read();
                    lexState = 'identifierNameEscape';
                    return
            }

            if (util.isIdContinueChar(c)) {
                buffer += read();
                return
            }

            return newToken('identifier', buffer)
        },

        identifierNameEscape: function identifierNameEscape() {
            if (c !== 'u') {
                throw invalidChar(read())
            }

            read();
            var u = unicodeEscape();
            switch (u) {
                case '$':
                case '_':
                case '\u200C':
                case '\u200D':
                    break

                default:
                    if (!util.isIdContinueChar(u)) {
                        throw invalidIdentifier()
                    }

                    break
            }

            buffer += u;
            lexState = 'identifierName';
        },

        sign: function sign$1() {
            switch (c) {
                case '.':
                    buffer = read();
                    lexState = 'decimalPointLeading';
                    return

                case '0':
                    buffer = read();
                    lexState = 'zero';
                    return

                case '1':
                case '2':
                case '3':
                case '4':
                case '5':
                case '6':
                case '7':
                case '8':
                case '9':
                    buffer = read();
                    lexState = 'decimalInteger';
                    return

                case 'I':
                    read();
                    literal('nfinity');
                    return newToken('numeric', sign * Infinity)

                case 'N':
                    read();
                    literal('aN');
                    return newToken('numeric', NaN)
            }

            throw invalidChar(read())
        },

        zero: function zero() {
            switch (c) {
                case '.':
                    buffer += read();
                    lexState = 'decimalPoint';
                    return

                case 'e':
                case 'E':
                    buffer += read();
                    lexState = 'decimalExponent';
                    return

                case 'x':
                case 'X':
                    buffer += read();
                    lexState = 'hexadecimal';
                    return
            }

            return newToken('numeric', sign * 0)
        },

        decimalInteger: function decimalInteger() {
            switch (c) {
                case '.':
                    buffer += read();
                    lexState = 'decimalPoint';
                    return

                case 'e':
                case 'E':
                    buffer += read();
                    lexState = 'decimalExponent';
                    return
            }

            if (util.isDigit(c)) {
                buffer += read();
                return
            }

            return newToken('numeric', sign * Number(buffer))
        },

        decimalPointLeading: function decimalPointLeading() {
            if (util.isDigit(c)) {
                buffer += read();
                lexState = 'decimalFraction';
                return
            }

            throw invalidChar(read())
        },

        decimalPoint: function decimalPoint() {
            switch (c) {
                case 'e':
                case 'E':
                    buffer += read();
                    lexState = 'decimalExponent';
                    return
            }

            if (util.isDigit(c)) {
                buffer += read();
                lexState = 'decimalFraction';
                return
            }

            return newToken('numeric', sign * Number(buffer))
        },

        decimalFraction: function decimalFraction() {
            switch (c) {
                case 'e':
                case 'E':
                    buffer += read();
                    lexState = 'decimalExponent';
                    return
            }

            if (util.isDigit(c)) {
                buffer += read();
                return
            }

            return newToken('numeric', sign * Number(buffer))
        },

        decimalExponent: function decimalExponent() {
            switch (c) {
                case '+':
                case '-':
                    buffer += read();
                    lexState = 'decimalExponentSign';
                    return
            }

            if (util.isDigit(c)) {
                buffer += read();
                lexState = 'decimalExponentInteger';
                return
            }

            throw invalidChar(read())
        },

        decimalExponentSign: function decimalExponentSign() {
            if (util.isDigit(c)) {
                buffer += read();
                lexState = 'decimalExponentInteger';
                return
            }

            throw invalidChar(read())
        },

        decimalExponentInteger: function decimalExponentInteger() {
            if (util.isDigit(c)) {
                buffer += read();
                return
            }

            return newToken('numeric', sign * Number(buffer))
        },

        hexadecimal: function hexadecimal() {
            if (util.isHexDigit(c)) {
                buffer += read();
                lexState = 'hexadecimalInteger';
                return
            }

            throw invalidChar(read())
        },

        hexadecimalInteger: function hexadecimalInteger() {
            if (util.isHexDigit(c)) {
                buffer += read();
                return
            }

            return newToken('numeric', sign * Number(buffer))
        },

        string: function string() {
            switch (c) {
                case '\\':
                    read();
                    buffer += escape();
                    return

                case '"':
                    if (doubleQuote) {
                        read();
                        return newToken('string', buffer)
                    }

                    buffer += read();
                    return

                case "'":
                    if (!doubleQuote) {
                        read();
                        return newToken('string', buffer)
                    }

                    buffer += read();
                    return

                case '\n':
                case '\r':
                    throw invalidChar(read())

                case '\u2028':
                case '\u2029':
                    separatorChar(c);
                    break

                case undefined:
                    throw invalidChar(read())
            }

            buffer += read();
        },

        start: function start() {
            switch (c) {
                case '{':
                case '[':
                    return newToken('punctuator', read())

                    // This code is unreachable since the default lexState handles eof.
                    // case undefined:
                    //     return newToken('eof')
            }

            lexState = 'value';
        },

        beforePropertyName: function beforePropertyName() {
            switch (c) {
                case '$':
                case '_':
                    buffer = read();
                    lexState = 'identifierName';
                    return

                case '\\':
                    read();
                    lexState = 'identifierNameStartEscape';
                    return

                case '}':
                    return newToken('punctuator', read())

                case '"':
                case "'":
                    doubleQuote = (read() === '"');
                    lexState = 'string';
                    return
            }

            if (util.isIdStartChar(c)) {
                buffer += read();
                lexState = 'identifierName';
                return
            }

            throw invalidChar(read())
        },

        afterPropertyName: function afterPropertyName() {
            if (c === ':') {
                return newToken('punctuator', read())
            }

            throw invalidChar(read())
        },

        beforePropertyValue: function beforePropertyValue() {
            lexState = 'value';
        },

        afterPropertyValue: function afterPropertyValue() {
            switch (c) {
                case ',':
                case '}':
                    return newToken('punctuator', read())
            }

            throw invalidChar(read())
        },

        beforeArrayValue: function beforeArrayValue() {
            if (c === ']') {
                return newToken('punctuator', read())
            }

            lexState = 'value';
        },

        afterArrayValue: function afterArrayValue() {
            switch (c) {
                case ',':
                case ']':
                    return newToken('punctuator', read())
            }

            throw invalidChar(read())
        },

        end: function end() {
            // This code is unreachable since it's handled by the default lexState.
            // if (c === undefined) {
            //     read()
            //     return newToken('eof')
            // }

            throw invalidChar(read())
        },
    };

    function newToken(type, value) {
        return {
            type: type,
            value: value,
            line: line,
            column: column,
        }
    }

    function literal(s) {
        for (var i = 0, list = s; i < list.length; i += 1) {
            var c = list[i];

            var p = peek();

            if (p !== c) {
                throw invalidChar(read())
            }

            read();
        }
    }

    function escape() {
        var c = peek();
        switch (c) {
            case 'b':
                read();
                return '\b'

            case 'f':
                read();
                return '\f'

            case 'n':
                read();
                return '\n'

            case 'r':
                read();
                return '\r'

            case 't':
                read();
                return '\t'

            case 'v':
                read();
                return '\v'

            case '0':
                read();
                if (util.isDigit(peek())) {
                    throw invalidChar(read())
                }

                return '\0'

            case 'x':
                read();
                return hexEscape()

            case 'u':
                read();
                return unicodeEscape()

            case '\n':
            case '\u2028':
            case '\u2029':
                read();
                return ''

            case '\r':
                read();
                if (peek() === '\n') {
                    read();
                }

                return ''

            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
                throw invalidChar(read())

            case undefined:
                throw invalidChar(read())
        }

        return read()
    }

    function hexEscape() {
        var buffer = '';
        var c = peek();

        if (!util.isHexDigit(c)) {
            throw invalidChar(read())
        }

        buffer += read();

        c = peek();
        if (!util.isHexDigit(c)) {
            throw invalidChar(read())
        }

        buffer += read();

        return String.fromCodePoint(parseInt(buffer, 16))
    }

    function unicodeEscape() {
        var buffer = '';
        var count = 4;

        while (count-- > 0) {
            var c = peek();
            if (!util.isHexDigit(c)) {
                throw invalidChar(read())
            }

            buffer += read();
        }

        return String.fromCodePoint(parseInt(buffer, 16))
    }

    var parseStates = {
        start: function start() {
            if (token.type === 'eof') {
                throw invalidEOF()
            }

            push();
        },

        beforePropertyName: function beforePropertyName() {
            switch (token.type) {
                case 'identifier':
                case 'string':
                    key = token.value;
                    parseState = 'afterPropertyName';
                    return

                case 'punctuator':
                    // This code is unreachable since it's handled by the lexState.
                    // if (token.value !== '}') {
                    //     throw invalidToken()
                    // }

                    pop();
                    return

                case 'eof':
                    throw invalidEOF()
            }

            // This code is unreachable since it's handled by the lexState.
            // throw invalidToken()
        },

        afterPropertyName: function afterPropertyName() {
            // This code is unreachable since it's handled by the lexState.
            // if (token.type !== 'punctuator' || token.value !== ':') {
            //     throw invalidToken()
            // }

            if (token.type === 'eof') {
                throw invalidEOF()
            }

            parseState = 'beforePropertyValue';
        },

        beforePropertyValue: function beforePropertyValue() {
            if (token.type === 'eof') {
                throw invalidEOF()
            }

            push();
        },

        beforeArrayValue: function beforeArrayValue() {
            if (token.type === 'eof') {
                throw invalidEOF()
            }

            if (token.type === 'punctuator' && token.value === ']') {
                pop();
                return
            }

            push();
        },

        afterPropertyValue: function afterPropertyValue() {
            // This code is unreachable since it's handled by the lexState.
            // if (token.type !== 'punctuator') {
            //     throw invalidToken()
            // }

            if (token.type === 'eof') {
                throw invalidEOF()
            }

            switch (token.value) {
                case ',':
                    parseState = 'beforePropertyName';
                    return

                case '}':
                    pop();
            }

            // This code is unreachable since it's handled by the lexState.
            // throw invalidToken()
        },

        afterArrayValue: function afterArrayValue() {
            // This code is unreachable since it's handled by the lexState.
            // if (token.type !== 'punctuator') {
            //     throw invalidToken()
            // }

            if (token.type === 'eof') {
                throw invalidEOF()
            }

            switch (token.value) {
                case ',':
                    parseState = 'beforeArrayValue';
                    return

                case ']':
                    pop();
            }

            // This code is unreachable since it's handled by the lexState.
            // throw invalidToken()
        },

        end: function end() {
            // This code is unreachable since it's handled by the lexState.
            // if (token.type !== 'eof') {
            //     throw invalidToken()
            // }
        },
    };

    function push() {
        var value;

        switch (token.type) {
            case 'punctuator':
                switch (token.value) {
                    case '{':
                        value = {};
                        break

                    case '[':
                        value = [];
                        break
                }

                break

            case 'null':
            case 'boolean':
            case 'numeric':
            case 'string':
                value = token.value;
                break

                // This code is unreachable.
                // default:
                //     throw invalidToken()
        }

        if (root === undefined) {
            root = value;
        } else {
            var parent = stack[stack.length - 1];
            if (Array.isArray(parent)) {
                parent.push(value);
            } else {
                Object.defineProperty(parent, key, {
                    value: value,
                    writable: true,
                    enumerable: true,
                    configurable: true,
                });
            }
        }

        if (value !== null && typeof value === 'object') {
            stack.push(value);

            if (Array.isArray(value)) {
                parseState = 'beforeArrayValue';
            } else {
                parseState = 'beforePropertyName';
            }
        } else {
            var current = stack[stack.length - 1];
            if (current == null) {
                parseState = 'end';
            } else if (Array.isArray(current)) {
                parseState = 'afterArrayValue';
            } else {
                parseState = 'afterPropertyValue';
            }
        }
    }

    function pop() {
        stack.pop();

        var current = stack[stack.length - 1];
        if (current == null) {
            parseState = 'end';
        } else if (Array.isArray(current)) {
            parseState = 'afterArrayValue';
        } else {
            parseState = 'afterPropertyValue';
        }
    }

    // This code is unreachable.
    // function invalidParseState () {
    //     return new Error(`JSON5: invalid parse state '${parseState}'`)
    // }

    // This code is unreachable.
    // function invalidLexState (state) {
    //     return new Error(`JSON5: invalid lex state '${state}'`)
    // }

    function invalidChar(c) {
        if (c === undefined) {
            return syntaxError(("JSON5: invalid end of input at " + line + ":" + column))
        }

        return syntaxError(("JSON5: invalid character '" + (formatChar(c)) + "' at " + line + ":" + column))
    }

    function invalidEOF() {
        return syntaxError(("JSON5: invalid end of input at " + line + ":" + column))
    }

    // This code is unreachable.
    // function invalidToken () {
    //     if (token.type === 'eof') {
    //         return syntaxError(`JSON5: invalid end of input at ${line}:${column}`)
    //     }

    //     const c = String.fromCodePoint(token.value.codePointAt(0))
    //     return syntaxError(`JSON5: invalid character '${formatChar(c)}' at ${line}:${column}`)
    // }

    function invalidIdentifier() {
        column -= 5;
        return syntaxError(("JSON5: invalid identifier character at " + line + ":" + column))
    }

    function separatorChar(c) {
        console.warn(("JSON5: '" + (formatChar(c)) + "' in strings is not valid ECMAScript; consider escaping"));
    }

    function formatChar(c) {
        var replacements = {
            "'": "\\'",
            '"': '\\"',
            '\\': '\\\\',
            '\b': '\\b',
            '\f': '\\f',
            '\n': '\\n',
            '\r': '\\r',
            '\t': '\\t',
            '\v': '\\v',
            '\0': '\\0',
            '\u2028': '\\u2028',
            '\u2029': '\\u2029',
        };

        if (replacements[c]) {
            return replacements[c]
        }

        if (c < ' ') {
            var hexString = c.charCodeAt(0).toString(16);
            return '\\x' + ('00' + hexString).substring(hexString.length)
        }

        return c
    }

    function syntaxError(message) {
        var err = new SyntaxError(message);
        err.lineNumber = line;
        err.columnNumber = column;
        return err
    }

    var stringify = function stringify(value, replacer, space) {
        var stack = [];
        var indent = '';
        var propertyList;
        var replacerFunc;
        var gap = '';
        var quote;

        if (
            replacer != null &&
            typeof replacer === 'object' &&
            !Array.isArray(replacer)
        ) {
            space = replacer.space;
            quote = replacer.quote;
            replacer = replacer.replacer;
        }

        if (typeof replacer === 'function') {
            replacerFunc = replacer;
        } else if (Array.isArray(replacer)) {
            propertyList = [];
            for (var i = 0, list = replacer; i < list.length; i += 1) {
                var v = list[i];

                var item = (void 0);

                if (typeof v === 'string') {
                    item = v;
                } else if (
                    typeof v === 'number' ||
                    v instanceof String ||
                    v instanceof Number
                ) {
                    item = String(v);
                }

                if (item !== undefined && propertyList.indexOf(item) < 0) {
                    propertyList.push(item);
                }
            }
        }

        if (space instanceof Number) {
            space = Number(space);
        } else if (space instanceof String) {
            space = String(space);
        }

        if (typeof space === 'number') {
            if (space > 0) {
                space = Math.min(10, Math.floor(space));
                gap = '          '.substr(0, space);
            }
        } else if (typeof space === 'string') {
            gap = space.substr(0, 10);
        }

        return serializeProperty('', {
            '': value
        })

        function serializeProperty(key, holder) {
            var value = holder[key];
            if (value != null) {
                if (typeof value.toJSON5 === 'function') {
                    value = value.toJSON5(key);
                } else if (typeof value.toJSON === 'function') {
                    value = value.toJSON(key);
                }
            }

            if (replacerFunc) {
                value = replacerFunc.call(holder, key, value);
            }

            if (value instanceof Number) {
                value = Number(value);
            } else if (value instanceof String) {
                value = String(value);
            } else if (value instanceof Boolean) {
                value = value.valueOf();
            }

            switch (value) {
                case null:
                    return 'null'
                case true:
                    return 'true'
                case false:
                    return 'false'
            }

            if (typeof value === 'string') {
                return quoteString(value, false)
            }

            if (typeof value === 'number') {
                return String(value)
            }

            if (typeof value === 'object') {
                return Array.isArray(value) ? serializeArray(value) : serializeObject(value)
            }

            return undefined
        }

        function quoteString(value) {
            var quotes = {
                "'": 0.1,
                '"': 0.2,
            };

            var replacements = {
                "'": "\\'",
                '"': '\\"',
                '\\': '\\\\',
                '\b': '\\b',
                '\f': '\\f',
                '\n': '\\n',
                '\r': '\\r',
                '\t': '\\t',
                '\v': '\\v',
                '\0': '\\0',
                '\u2028': '\\u2028',
                '\u2029': '\\u2029',
            };

            var product = '';

            for (var i = 0; i < value.length; i++) {
                var c = value[i];
                switch (c) {
                    case "'":
                    case '"':
                        quotes[c]++;
                        product += c;
                        continue

                    case '\0':
                        if (util.isDigit(value[i + 1])) {
                            product += '\\x00';
                            continue
                        }
                }

                if (replacements[c]) {
                    product += replacements[c];
                    continue
                }

                if (c < ' ') {
                    var hexString = c.charCodeAt(0).toString(16);
                    product += '\\x' + ('00' + hexString).substring(hexString.length);
                    continue
                }

                product += c;
            }

            var quoteChar = quote || Object.keys(quotes).reduce(function(a, b) {
                return (quotes[a] < quotes[b]) ? a : b;
            });

            product = product.replace(new RegExp(quoteChar, 'g'), replacements[quoteChar]);

            return quoteChar + product + quoteChar
        }

        function serializeObject(value) {
            if (stack.indexOf(value) >= 0) {
                throw TypeError('Converting circular structure to JSON5')
            }

            stack.push(value);

            var stepback = indent;
            indent = indent + gap;

            var keys = propertyList || Object.keys(value);
            var partial = [];
            for (var i = 0, list = keys; i < list.length; i += 1) {
                var key = list[i];

                var propertyString = serializeProperty(key, value);
                if (propertyString !== undefined) {
                    var member = serializeKey(key) + ':';
                    if (gap !== '') {
                        member += ' ';
                    }
                    member += propertyString;
                    partial.push(member);
                }
            }

            var final;
            if (partial.length === 0) {
                final = '{}';
            } else {
                var properties;
                if (gap === '') {
                    properties = partial.join(',');
                    final = '{' + properties + '}';
                } else {
                    var separator = ',\n' + indent;
                    properties = partial.join(separator);
                    final = '{\n' + indent + properties + ',\n' + stepback + '}';
                }
            }

            stack.pop();
            indent = stepback;
            return final
        }

        function serializeKey(key) {
            if (key.length === 0) {
                return quoteString(key, true)
            }

            var firstChar = String.fromCodePoint(key.codePointAt(0));
            if (!util.isIdStartChar(firstChar)) {
                return quoteString(key, true)
            }

            for (var i = firstChar.length; i < key.length; i++) {
                if (!util.isIdContinueChar(String.fromCodePoint(key.codePointAt(i)))) {
                    return quoteString(key, true)
                }
            }

            return key
        }

        function serializeArray(value) {
            if (stack.indexOf(value) >= 0) {
                throw TypeError('Converting circular structure to JSON5')
            }

            stack.push(value);

            var stepback = indent;
            indent = indent + gap;

            var partial = [];
            for (var i = 0; i < value.length; i++) {
                var propertyString = serializeProperty(String(i), value);
                partial.push((propertyString !== undefined) ? propertyString : 'null');
            }

            var final;
            if (partial.length === 0) {
                final = '[]';
            } else {
                if (gap === '') {
                    var properties = partial.join(',');
                    final = '[' + properties + ']';
                } else {
                    var separator = ',\n' + indent;
                    var properties$1 = partial.join(separator);
                    final = '[\n' + indent + properties$1 + ',\n' + stepback + ']';
                }
            }

            stack.pop();
            indent = stepback;
            return final
        }
    };

    var JSON5 = {
        parse: parse,
        stringify: stringify,
    };

    var lib = JSON5;

    var es5 = lib;

    return es5;

})));